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2025 County Report

Fires in Fond du Lac County, WI

In 2025, fire departments serving Fond du Lac County responded to 720 fire and hazmat incidents — including a single $450K property loss. FEMA NRI rates wildfire risk here as Moderate.

67,703 residents FIPS 55039 58 cities · 18 fire depts
Total incidents
720
3,424 across 5 years
Building fires
155
76 wildland
Property loss
$4.0M
$2.6M structure · $1.4M contents
Casualties
0 / 4
0 civ deaths · 4 civ inj · 0 FF inj
01 The mix

What kinds of fires happen here?

Building fires lead by count. Top five categories make up about 55% of all calls.

720
Total Incidents
Building fires 155 21.5%
Power line down 91 12.6%
Gas leak (natural gas or LPG) 75 10.4%
Unauthorized burning 40 5.6%
Carbon monoxide incident 35 4.9%
All other categories 324 45.0%
02 Seasonality

When do fires happen in Fond du Lac County?

Jun peaks. Dec dips.

Jan 66
Feb 50
Mar 73
Apr 66
May 75
Jun 78
Jul 56
Aug 59
Sep 50
Oct 48
Nov 66
Dec 33
03 Five-year trend

Year over year in Fond du Lac County

3,424 incidents from 2021 through 2025.

YearIncidents 
2021 618
2022 712
2023 680
2024 694
2025 720
04 Cause of ignition

What sparks building fires?

For the 155 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
47%
82
Cause undetermined
17%
29
Intentional / arson
5%
9
Equipment / heat source failure
16%
28
Under investigation
11%
19
Act of nature (lightning)
4%
2
05 The biggest fires

10 fires · $1.8M in losses

Largest single-incident property losses in Fond du Lac County during 2025. These 10 fires alone account for 69% of the county's total.

#Property lossCityTypeSeverity
1 $450,000 FOND DU LAC Building fires Major
2 $310,000 Oakfield Building fires Major
3 $278,800 Campbellsport Building fires Major
4 $200,000 NORTH FOND DU LAC Building fires Significant
5 $100,000 Brandon Fire, other Significant
6 $100,000 Brandon Fire, other Significant
7 $100,000 Lamartine Fires in structures other than in a building Significant
8 $85,000 Ripon Building fires Significant
9 $75,000 Campbellsport Building fires Significant
10 $67,000 EDEN Building fires Significant
06 How Fond du Lac County compares

Fond du Lac County vs WI vs the nation

Per-capita rates let us compare apples to apples.

10.63
Incidents per 1,000 residents
Fond du Lac County
10.63
WI avg
8.73
US avg
7.15
2.29
Building fires per 1,000 residents
Fond du Lac County
2.29
WI avg
1.73
US avg
0.82
0
Civilian fire deaths per million
Fond du Lac County
0
WI avg
14.4
US avg
5.8
07 Cities in this county

Largest cities in Fond du Lac County

12 cities mapped to FIPS 55039.

08 First responders

Busiest fire departments in Fond du Lac County

18 departments report from this county.

Fond du Lac City FireRescue
—
FDID 20090 278 incidents
Campbellsport Vol Fire Dept
—
FDID 20050 59 incidents
Ripon Vol Fire Dept
Ripon
FDID 20140 56 incidents 1 paid
Waupun Community Fire Dept
Waupun
FDID 20190 51 incidents 1 paid 11 vol
Mount Calvary Fire Dept
Mount Calvary
FDID 20110 45 incidents
09 Historical wildfires

Largest fires recorded in WI

Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 Necedah WL unit 23B RX 2024 FWS 853
2 WIHRR-FY19-RX-Cattail Desert North 2019 FWS 536
3 Peters WF 2014 FWS 363
4 WINCR-FY19-RX-Triangle Complex 2019 FWS 355
5 WISCR-FY19-RX-10 Mile 2019 FWS 352
6 WINCR-FY19-RX-PR19-20 2019 FWS 349
7 WINCR-FY19-RX-PR28 2019 FWS 293
8 WINCR-FY21-WF-Railroad 2 2021 OTH 267
9 WISCR-FY19-RX-Erickson 2019 FWS 249
10 WIHRR-FY19-RX-Collien's Ditch South 2019 FWS 224

About this data

County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.